William o



W. 0. 'BOURNIL Ore Separator.

No. 236,416. Patented Jan. 11,1881.

" UNrTnn STATES PATENT @Errea VILLIAM O. BOURNE, OF NElV YORK, N. Y.

ORE-.SEPA RATO R.

SPECIFICATION forming part of Letters Patent No. 236,416, dated January11, 1881.

Application led October 14, 1879. I

To all whom t may concern Be it known that I, WILLIAM OLAND BOURNE,residing in the city, county, and State of New York, have inventedcertain new and useful Improvements in Ore-Separatore, of which thefollowing` is a specilication.

My invention relates to that class of machines which treat rocks andearths containing metals or metalliferous substances ot' differentAspecilc gravities, when such matters have been pulverized and sifted toan approximately-uniform ineness, and when such machines are providedwith aworkin g surface or bed ot' woven or perforated metal, or otherproper material for carrying the pulverized material, and whereon it issubjected to an upward motion from pu's of air through the bed fromabellows or other blowing contrivance, and by which action the heavierare separated from the lighter particles, from difference of speciticgravities, and fall on the bottom or bed, while the lighter portionforms a top stratum waste. Such ma chines, actuated by mechanical power,are well known wherein the pulverized material is automatcally suppliedto the machine and is separated and passed from the machine in acontinuous concentrated stream at one point of delivery, while the wasteor tailings are also continuously delivered at another point.

The objectiye feature of my invention, which I have named thepan-separator;7 is to construct a simple, cheap, and efficient portableseparator to be worked by hand, and wherein I may employ either air orwater as the separating medium, a-nd my invention consists, mainly, inconstructing such machines so that the downward movement ot' theore-receptacle operates the bellows, and in certain combinations ofparts whereby the main feature of my invention is carried out, as willbe hereinafter more fully described, and then pointed out in the claims.

In the drawings, Figure 1 represents a sectional vertical elevation ot'my improved machine, and Fig. 2 a plan of the working-bed with certainparts cut away to illustrate its construction.

In the accompanying drawings, B represen ts a bellows consisting of abase-plate, b, provided with a central orifice, o, having a flap-valve,fv, covering its inner end and opening upward. @represents a collapsiblecase, formed of leather or other liexible material, connecting theperipheries of the base b and upper head, d. The base-plate b ispreferably provided with legs t0 raise it from the tloor and admit afree passage ot' the' air to the inlet-valve o of the orifice ocommunicating with the interior ofthe bellows.

A represents an ore-receptacle in a central opening' in the upper head,d, communicating` with the interior ot' the bellows, and consisting,mainly, of a sieve-bottom and curbs supported on a suitable frame.

c c e are thin bars lying under and supporting the sieve f, of wovenwire, perforated metal, or other material, upon which a bedvor cushion,g, is laid, consisting of one or more thicknesses of woven clothstitched or quilted at frequent intervals to the sievef.

t' shows a shallow curb or border surrounding the bed, and h is anadjustable but deeper curb, fitting closely within the curb t, to beraised or lowered, according to the quantity and nature ot' the materialunder treatment. An inclined plate, L', as a waste or water shed, issecured to the top edge, outside of h, a part of which plate is cut awayto receive a deliveryspout, l, as shown.

m represents a shallow pan secured under the bars e, so as to leave aspace all around between its edges and the frame-work for free passageor outlet ofthe air from the bellows to the perforated bed and mineralabove. This pan is to catch any fine particles ot' mineral which maypass through the bed. All the described upper part ot' the machine maybe readily dissected from the frame d.

a represents a pipe intended to communicate with the interior of thebellows to supply water when that medium for separation is used insteadof air, and o shows a helix-spring for distending the bellows-case.

The apparatus may with advantage be secured to the iloor by the base bin any convenient manner when working, to prevent its moving about underthe force employed, and in operating a thin conch ot' the pulverizedmatter is laid upon the bed g; then, with the hands on each side of thetop rim, press gently downward. The air from the bellows will be forcedthrough the sieves and mineral, giving it an undulating and wave-likemotion, separating the lighter from the heavier portions and forcing theformer to the top.

IOO

When either the concentration or the Waste has accumulated so as toembarrass the working action it may be shaken oft' by the spout l, and alight brush and shovel be used to collect the ore from off the bed; orit may be thrown off into a proper receptacle by a dexterous n10- tonot' the hand.

In using Water a supply-pipe from a fountain or other pressure should beattached to the pipe u, as described, proceeding as before.

What I claim, and desire to secure by Letters Patent for anore-separator, is-

l. In a separator, a receptacle, A, having a sieve-bottom, incombination with and secured directlyto a bellows,,and moving therewith,the interior ofthe bellows communicating with the interior oftheseparator, whereby a movement ofthe receptacle will operate the bellowsand agitate the material in tlie separator, substantially as specified.

2. In a separator, the combination of the receptacle A, having aperforated bottom, a, blast mechanism B, communicating with thereceptacle A by an opening under the perforated bottom, and a spring, 0,substantially as described, and for the purpose specified.

3. The combination of the base b, provided with the valve c, iiexiblematerial a, head d, carrying an ore-receptacle, A, having a sievebottom,adjustable curb h, and spring o, substantially as described, and for thepurpose set forth.

4. The combination, with a bellows having a central opening in its headd, of an ore-receptacle having a sieve-bottom, and pan m, havingopenings in its side, suspended in the opening in the head d,substantially as described, and for the purpose set forth.

WM. OLAND BOURNE.

Vitnesses:

J. B. HYDE, L. FUco'r.

